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Bio Ch 5 Unit Test
Biology Chapter 5 Unit Test
| Question | Answer |
|---|---|
| There are 150 saguaro cactus plants per square kilometer in a 10 square kilometer area of the Arizona desert. To which population characteristic does this information refer? | Population Density |
| Which of the following could describe a population that is decreasing in size? | death rate is becoming higher than the birth rate |
| The movement of organisms into a range is called a____. | Immigration |
| Which of the following is not one of the factors that play a role in population growth rate. | Demography |
| If you know the range of a population then you know____. | the area that are inhibited by the population |
| A small farming community in Texas covers 14 square kilometers. There are 420 individuals that live in the town limits. What is the population density in this community? | 30 |
| Which of the following gives you information about a population's age structure? | there are 10 men and 15 females under the age of 2 |
| Which are 2 ways a population can decrease in size? | decreased birth rate, emigration |
| Suppose that a species of toads is introduced into a new environment in an attempt to reduce the population of insects. The toad has no natural predators in the new environment. The toad population will most likey___? | Increase Exponentially |
| Which of the following graphs is a graph showing exponential growth? | the graph that only increases in a short period of time |
| Which will reduce competition within a species population? | Fewer Individuals |
| Sea otters live in the ocean. Which of the following is not likely to be a limiting factor on the sea otter? | Drought |
| During some kinds of population growth the size of each generation of offspring is larger than the generation before it. So as the population gets larger it grows more quickly. This situation is called____? | Exponential Growth |
| Which factor might not contribute to an exponential growth rate in a given population? | Reach Carrying Capacity |
| In a logistic growth curve exponential growth in the phase at which the population_____. | Grows Quickly |
| When the exponential phase of a logistic growth curve of a population ceases_____. | population growth begins to slow down |
| Something that controls the growth and size of a population is____. | Limiting Factor |
| After a natural disaster such as a hurricane or a drought a population____. | can be mostly killed off |
| Water lilies don't grow in desert sand because water availability to these plants in a desert is____. | Limiting Factor |
| What is the most likely cause of the decrease in moose population in 1995? | Overcrowding caused competition in moose population |
| Each of the following is a density dependent limiting factor except____. | Temperature |
| Which of the following is a density independent limiting factor? | the eruption of a volcano |
| Which would be least likely to be affected by a density dependent limiting factor? | a small scatter population |
| Demography is the scientific study of____. | Human Population |
| The human population in Canada contains almost equal numbers of people in each age group this means the population in Canada will____. | grow slowly but steadily |
| In countries like India the human population is growing____. | Exponentially |
| The human population experienced exponential growth just after____. | the industrial revolution began |
| About 500 years ago the world's population started____. | growing more rapidly |
| Demographic transition is changing from high birthrates and high death rates to____. | to low birthrates and low death rates |
| The logistics model of population growth accounts for the______of carrying capacity. | Influence |
| The number of individuals per unit area is a population’s____. | Density |
| _____growth occurs when a population growth slows or stops following a period of rapid growth. | Logistic |
| An indication that a country has completed the demographic transition is a____birth rate and a____death rate. | Low |
| _____can limit the size of a population by weakening their host resulting in disease or death. | Parasites |
| Scientists who study the human population and predict the growth rates of the world and of individual countries study the science of____. | Demography |
| When an individual moves into a population from a different population it is called____. | Immigration |
| The rise and fall cycle of a predator prey relationship is a density____relationship. | Dependent |
| Unusual weather and natural disasters are examples of density_____limiting factors. | Independent |
| The number of male and females of each age in a population is the population’s____. | Age Structure |
Created by:
P.V.A.